The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
다운링크에 대한 다중 경로 DS-CDMA 통신 채널에서 적응적 신호 억제를 위한 블라인드 기술이 고려됩니다. 다중 경로 구성 요소가 분수 칩 지연으로 도착할 때 불일치 문제가 발생하면 성능이 저하됩니다. 이러한 문제를 극복하기 위해 최근에는 부분적으로 지연된 역확산 핑거를 사용하여 수신된 원하는 신호 부분 공간을 추정하는 다중 핑거 확장 최적 필터(MFE-OF)가 제안되었습니다. 그러나 MFE-OF는 우수한 성능을 위해 많은 계산 복잡성을 요구합니다. 본 논문에서는 큰 성능 저하 없이 MFE-OF에 필요한 핑거 수를 기존 OMF-RAKE 수준으로 줄이기 위해 의사결정 지향 스티어링 벡터를 활용하여 MFE-OF에 대한 수정을 소개합니다. 이 수정된 수신기를 DDOF(Decision-Directed Optimal Filter)라고 합니다. 컴퓨터 시뮬레이션을 통해 DS-CDMA 시스템의 다운링크 용량을 증가시키는 새로운 수신기의 효율성을 검증했습니다.
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Quee-Seng QUEK, Hiroshi SUZUKI, "A Blind Adaptive Receiver with Decision-Directed Steering Vector for DS-CDMA Downlink" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 8, pp. 1656-1663, August 2000, doi: .
Abstract: A blind technique for adaptive signal suppression in multipath DS-CDMA communication channels for the downlink is considered. Its performance is degraded when mismatch problem occurs when multipath components arrive with fractional-chip delays. In order to surmount this problem, Multiple Finger Expansion Optimal Filter (MFE-OF) was recently proposed to estimate the received desired signal subspace using fractionally delayed despreading fingers. However, MFE-OF requires much computational complexity for good performance. In this paper, a modification to the MFE-OF is introduced by utilizing decision-directed steering vector to reduce the number of fingers required by MFE-OF down to that of the conventional OMF-RAKE without much performance degradation. This modified receiver is called Decision-Directed Optimal Filter (DDOF). Computer simulation validates the effectiveness of the new receiver to increase the downlink capacity of DS-CDMA systems.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_8_1656/_p
부
@ARTICLE{e83-b_8_1656,
author={Quee-Seng QUEK, Hiroshi SUZUKI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Blind Adaptive Receiver with Decision-Directed Steering Vector for DS-CDMA Downlink},
year={2000},
volume={E83-B},
number={8},
pages={1656-1663},
abstract={A blind technique for adaptive signal suppression in multipath DS-CDMA communication channels for the downlink is considered. Its performance is degraded when mismatch problem occurs when multipath components arrive with fractional-chip delays. In order to surmount this problem, Multiple Finger Expansion Optimal Filter (MFE-OF) was recently proposed to estimate the received desired signal subspace using fractionally delayed despreading fingers. However, MFE-OF requires much computational complexity for good performance. In this paper, a modification to the MFE-OF is introduced by utilizing decision-directed steering vector to reduce the number of fingers required by MFE-OF down to that of the conventional OMF-RAKE without much performance degradation. This modified receiver is called Decision-Directed Optimal Filter (DDOF). Computer simulation validates the effectiveness of the new receiver to increase the downlink capacity of DS-CDMA systems.},
keywords={},
doi={},
ISSN={},
month={August},}
부
TY - JOUR
TI - A Blind Adaptive Receiver with Decision-Directed Steering Vector for DS-CDMA Downlink
T2 - IEICE TRANSACTIONS on Communications
SP - 1656
EP - 1663
AU - Quee-Seng QUEK
AU - Hiroshi SUZUKI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2000
AB - A blind technique for adaptive signal suppression in multipath DS-CDMA communication channels for the downlink is considered. Its performance is degraded when mismatch problem occurs when multipath components arrive with fractional-chip delays. In order to surmount this problem, Multiple Finger Expansion Optimal Filter (MFE-OF) was recently proposed to estimate the received desired signal subspace using fractionally delayed despreading fingers. However, MFE-OF requires much computational complexity for good performance. In this paper, a modification to the MFE-OF is introduced by utilizing decision-directed steering vector to reduce the number of fingers required by MFE-OF down to that of the conventional OMF-RAKE without much performance degradation. This modified receiver is called Decision-Directed Optimal Filter (DDOF). Computer simulation validates the effectiveness of the new receiver to increase the downlink capacity of DS-CDMA systems.
ER -